示例#1
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def overlap(r1, r2):
  return text.overlap(r1["title"], r2["title"]) > 1
示例#2
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def overlap_predicate(r1, r2):
  return text.overlap(r1["title"], r2["title"]) > 2
示例#3
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def rankf(row):
  row.update( {"rank": text.overlap(row["yn$abstract"], row["wiki$summary"]["value"])} ) ; return row